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Easy-Beacons-STEM

kholia·Easy-Beacons-STEM·Rogue-Radio-v3/Amplified-WSPR-Beacon-v4.kicad_pcb

Easy-Beacons-STEM PCB layout, top view — open source RP2040/RP2350 board by kholia
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About the Easy-Beacons-STEM PCB

Easy-Beacons-STEM is an open source RP2040/RP2350 PCB design by kholia, published on GitHub. It is a 2-layer board measuring 99.6 × 84.7 mm, with 49 components from 40 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the SI5351-Module-VFO (With TCXO), 74ACT244 and LM7805_TO220. By type, the board carries 19 capacitors, 5 diodes, 5 resistors, 4 ICs, 2 transistors and 2 test points.

It belongs with the rf & radio designs in this gallery, and the repository also holds 3 earlier revisions of it.

From the project

Easy-Beacons project adapted for STEM education. Powered by Raspberry Pi Pico (W) boards. WSPR + FT8 beacons for science (TM).

Rogue-Radio-v3 uses a GPS module (again...).

Main components on the Easy-Beacons-STEM

PicoSI5351-Module-VFO (With TCXO)74ACT244LM7805_TO220

Easy-Beacons-STEM bill of materials (BOM)

49 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Pico
U1
1
SI5351-Module-VFO (With TCXO)
U2
1
74ACT244
U3
1
LM7805_TO220
U4
1
Fan
M1
1
PN2222A
Q1
1
IRF510
Q2
1
Conn_Coaxial
J1
1
Screw_Terminal_01x02
ANTENNA1
1
600mA
F1
1
GY-NEO6MV2-Module
GPS1
1
Jumper_2_Open
JP3
1
DC-005 (Barrel Jack)
Power1
1
5k
RV2
1
SW_SPST
SW1
2
TestPoint
TP1, TP2
1
T2-613-1+
TR1
1
LED
D1
1
5.6V 5W
D2
1
75v 5W
D3
Show 20 more
QtyPartRefs
1
1N5818
D5
1
M7 (1N4007)
D6
1
260nH (T50-6, 8 turns)
L2
1
L_Ferrite_Coupled
L3
6
100nF
C1, C6, C7, C11, C12, C14
2
220p
C2, C3
1
100pF
C4
1
10uF 50v
C5
1
100uF/16V
C8
2
100u
C9, C19
1
10nF
C10
1
22uF 10v
C13
1
100uF 100v
C15
1
100nF 100v
C16
2
100n
C17, C18
1
2.2k
R1
1
470
R2
1
1k
R3
1
10k
R4
1
10
R5

Easy-Beacons-STEM design files

The KiCad project lives in the kholia/Easy-Beacons-STEM repository on GitHub; these links point at the commit this page was built from.

Easy-Beacons-STEM: common questions

What microcontroller does the Easy-Beacons-STEM use?

The Easy-Beacons-STEM is built around the Pico, from the RP2040/RP2350 family.

How big is the Easy-Beacons-STEM PCB?

The Easy-Beacons-STEM measures 99.6 × 84.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Easy-Beacons-STEM?

49 components, from 40 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Easy-Beacons-STEM design files?

From the kholia/Easy-Beacons-STEM repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Easy-Beacons-STEM design in my own project?

The repository has no license, so all rights stay with kholia. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Easy-Beacons-STEM without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

Earlier revisions in the repo: Amplified-WSPR-Beacon-v3, Amplified-WSPR-Beacon-v2, Amplified-WSPR-Beacon

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